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Nmap Project's Windows packet capture and transmission library
https://npcap.com
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Npcap Bug Report #344

Closed JonathanBelanger closed 3 years ago

JonathanBelanger commented 5 years ago

This will probably be a bit long. Sorry about that.

I am running Npcap on Windows 10 and cygwin. This code did work when using WinPcap. Here is the output from DiaReport (run on Windows directly):

DiagReport for Npcap ( http://npcap.org )
*************************************************
Script Architecture:        64-bit
Script Path:            C:\Program Files\Npcap\DiagReport.ps1
Current Time:           06/15/2019 14:38:10
Npcap install path:     C:\Program Files\Npcap
Npcap Version:          0.995
PowerShell Version:     5.1.17763.503

*************************************************
OS Info:
*************************************************

Caption                 : Microsoft Windows 10 Pro
BuildNumber             : 17763
Locale                  : 0409
MUILanguages            : {en-US}
OSArchitecture          : 64-bit
ServicePackMajorVersion : 0
ServicePackMinorVersion : 0
SystemDirectory         : C:\WINDOWS\system32
Version                 : 10.0.17763

*************************************************
CPU Info:
*************************************************

Name                      : AMD Athlon(tm) II X4 640 Processor
Manufacturer              : AuthenticAMD
DeviceID                  : CPU0
NumberOfCores             : 4
NumberOfEnabledCore       : 4
NumberOfLogicalProcessors : 4
Addresswidth              : 64

*************************************************
Memory Info:
*************************************************
Size:               8191 MB (8589201408 Bytes)

*************************************************
Network Adapter(s) Info:
*************************************************

Name                      InterfaceDescription                    ifIndex Status       MacAddress             LinkSpeed
----                      --------------------                    ------- ------       ----------             ---------
Wi-Fi                     Realtek 8812BU Wireless LAN 802.11ac...      20 Up           E8-4E-06-64-31-D0     173.3 Mbps
Ethernet 2                Symantec TAP Driver                          18 Disconnected 00-FF-ED-84-71-96         1 Gbps
Npcap Loopback Adapter    Npcap Loopback Adapter                       13 Up           02-00-4C-4F-4F-50       1.2 Gbps
Ethernet 3                Npcap Loopback Adapter                       12 Up           02-00-4C-4F-4F-50       1.2 Gbps
Ethernet                  Realtek PCIe GbE Family Controller            2 Disconnected 00-30-67-69-E4-B8          0 bps

Caption         : [00000001] Realtek 8812BU Wireless LAN 802.11ac USB NIC
GUID            : {FDCA9475-665E-4866-82B0-0D6BAC7E7D64}
Index           : 1
InterfaceIndex  : 20
Manufacturer    : Realtek Semiconductor Corp.
NetConnectionID : Wi-Fi
PNPDeviceID     : USB\VID_0BDA&PID_B812\123456

Caption         : [00000002] Realtek PCIe GbE Family Controller
GUID            : {054453C5-3FA9-45C1-AA4C-9A92941B6AC1}
Index           : 2
InterfaceIndex  : 2
Manufacturer    : Realtek
NetConnectionID : Ethernet
PNPDeviceID     : PCI\VEN_10EC&DEV_8168&SUBSYS_23091565&REV_03\4&32CBD392&0&0038

Caption         : [00000005] Symantec TAP Driver
GUID            : {ED847196-F074-4144-AB5A-72815A923C20}
Index           : 5
InterfaceIndex  : 18
Manufacturer    : Symantec TAP Driver
NetConnectionID : Ethernet 2
PNPDeviceID     : ROOT\NET\0000

Caption         : [00000006] Microsoft KM-TEST Loopback Adapter
GUID            : {9921DA2A-0FB0-4A51-99FF-F6F38E5B2C90}
Index           : 6
InterfaceIndex  : 13
Manufacturer    : Microsoft
NetConnectionID : Npcap Loopback Adapter
PNPDeviceID     : ROOT\NET\0001

Caption         : [00000015] Microsoft KM-TEST Loopback Adapter
GUID            : {94E813CE-02D6-418B-870F-681768C89B7E}
Index           : 15
InterfaceIndex  : 12
Manufacturer    : Microsoft
NetConnectionID : Ethernet 3
PNPDeviceID     : ROOT\NET\0002

*************************************************
NDIS Light-Weight Filter (LWF) Info:
*************************************************

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262144
ComponentId      : ms_bridge
Description      : @%SystemRoot%\system32\bridgeres.dll,-2
InfPath          : netbrdg.inf
InfSection       : Install
LocDescription   : @%SystemRoot%\system32\bridgeres.dll,-2
                   6e974-e325-11ce-bfc1-08002be10318}\{171C5016-3D19-4CB2-9556-63E586EE5010}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262184
ComponentId      : ms_wfplwf_lower
Description      : @%windir%\System32\drivers\wfplwfs.sys,-6006
InfPath          : wfplwfs.inf
InfSection       : WfpLwf_Lower_Install
LocDescription   : @%windir%\System32\drivers\wfplwfs.sys,-6006
                   6e974-e325-11ce-bfc1-08002be10318}\{3BFD7820-D65C-4C1B-9FEA-983A019639EA}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 40
ComponentId      : ms_netbios
Description      : @%windir%\system32\drivers\netbios.sys,-501
InfPath          : netnb.inf
InfSection       : NetBIOS.ndi
LocDescription   : @%windir%\system32\drivers\netbios.sys,-501
                   6e974-e325-11ce-bfc1-08002be10318}\{42494F53-4554-004E-6E89-7EF9DE2570E3}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
ComponentId      : ms_server
Description      : @%systemroot%\system32\srvsvc.dll,-109
InfPath          : Netserv.inf
InfSection       : Install.ndi
LocDescription   : @%systemroot%\system32\srvsvc.dll,-109
                   6e974-e325-11ce-bfc1-08002be10318}\{52564552-5345-414E-2DD4-CF8F7555A888}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262184
ComponentId      : ms_vwifi
Description      : @%windir%\System32\drivers\vwififlt.sys,-105
InfPath          : netvwififlt.inf
InfSection       : Install
LocDescription   : @%windir%\System32\drivers\vwififlt.sys,-105
                   6e974-e325-11ce-bfc1-08002be10318}\{5CBF81BF-5055-47CD-9055-A76B2B4E3698}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {227, 7, 6, 0...}
Characteristics  : 262144
ComponentId      : INSECURE_NPCAP
Description      : @oem15.inf,%npf_desc_standard%;Npcap Packet Driver (NPCAP)
InfPath          : oem15.inf
InfSection       : FilterStandard
LocDescription   : @oem15.inf,%npf_desc_standard%;Npcap Packet Driver (NPCAP)
                   6e974-e325-11ce-bfc1-08002be10318}\{7DAF2AC8-E9F6-4765-A842-F1F5D2501341}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {227, 7, 6, 0...}
Characteristics  : 262144
ComponentId      : INSECURE_NPCAP_WIFI
Description      : @oem15.inf,%npf_desc_wifi%;Npcap Packet Driver (NPCAP) (Wi-Fi)
InfPath          : oem15.inf
InfSection       : FilterWiFi
LocDescription   : @oem15.inf,%npf_desc_wifi%;Npcap Packet Driver (NPCAP) (Wi-Fi)
                   6e974-e325-11ce-bfc1-08002be10318}\{7DAF2AC8-E9F6-4765-A842-F1F5D2501351}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262144
ComponentId      : ms_pacer
Description      : @%windir%\System32\drivers\pacer.sys,-101
InfPath          : netpacer.inf
InfSection       : Install
LocDescription   : @%windir%\System32\drivers\pacer.sys,-101
                   6e974-e325-11ce-bfc1-08002be10318}\{B5F4D659-7DAA-4565-8E41-BE220ED60542}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262184
ComponentId      : ms_wfplwf_upper
Description      : @%windir%\System32\drivers\wfplwfs.sys,-6005
InfPath          : wfplwfs.inf
InfSection       : WfpLwf_Upper_Install
LocDescription   : @%windir%\System32\drivers\wfplwfs.sys,-6005
                   6e974-e325-11ce-bfc1-08002be10318}\{B70D6460-3635-4D42-B866-B8AB1A24454C}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262184
ComponentId      : ms_nativewifip
Description      : @%windir%\System32\drivers\nwifi.sys,-101
InfPath          : netnwifi.inf
InfSection       : MS_NWIFI.Install
LocDescription   : @%windir%\System32\drivers\nwifi.sys,-101
                   6e974-e325-11ce-bfc1-08002be10318}\{E475CF9A-60CD-4439-A75F-0079CE0E18A1}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262144
ComponentId      : ms_wfplwf_vswitch
Description      : @%windir%\System32\drivers\wfplwfs.sys,-6004
InfPath          : wfplwfs.inf
InfSection       : WfpLwf_vSwitch_Install
LocDescription   : @%windir%\System32\drivers\wfplwfs.sys,-6004
                   6e974-e325-11ce-bfc1-08002be10318}\{E7C3B2F0-F3C5-48DF-AF2B-10FED6D72E7A}
                   6e974-e325-11ce-bfc1-08002be10318}

InstallTimeStamp : {221, 7, 12, 0...}
Characteristics  : 262200
ComponentId      : ms_ndiscap
Description      : @%windir%\System32\drivers\ndiscap.sys,-5000
InfPath          : ndiscap.inf
InfSection       : Install
LocDescription   : @%windir%\System32\drivers\ndiscap.sys,-5000
                   6e974-e325-11ce-bfc1-08002be10318}\{EA24CD6C-D17A-4348-9190-09F0D5BE83DD}
                   6e974-e325-11ce-bfc1-08002be10318}

*************************************************
File Info:
*************************************************

    Directory: C:\Program Files\Npcap

Mode                LastWriteTime         Length Name                                                                  
----                -------------         ------ ----                                                                  
-a----        4/30/2019   1:59 PM            862 CheckStatus.bat                                                       
-a----        6/15/2019   2:38 PM              0 DiagReport-20190615-143809.txt                                        
-a----       11/29/2016   5:43 PM           1034 DiagReport.bat                                                        
-a----        12/5/2018   1:12 AM           8908 DiagReport.ps1                                                        
-a----        4/30/2019   1:58 PM           2953 FixInstall.bat                                                        
-a----         6/9/2019   6:07 PM          23435 install.log                                                           
-a----        1/11/2019  10:52 AM           9920 LICENSE                                                               
-a----         6/9/2019   6:06 PM              1 loopback.ini                                                          
-a----        5/10/2019   8:44 PM          10874 npcap.cat                                                             
-a----        5/10/2019   8:44 PM           8656 npcap.inf                                                             
-a----        5/10/2019   8:44 PM          83776 npcap.sys                                                             
-a----        5/10/2019   8:04 PM           2403 npcap_wfp.inf                                                         
-a----        5/10/2019   8:06 PM         270648 NPFInstall.exe                                                        
-a----         6/9/2019   6:06 PM          62570 NPFInstall.log                                                        
-a----        5/10/2019   8:45 PM         175256 Uninstall.exe                                                         

    Directory: C:\WINDOWS\System32

Mode                LastWriteTime         Length Name                                                                  
----                -------------         ------ ----                                                                  
-a----        2/28/2013   8:49 PM         107768 Packet.dll                                                            
-a----        2/28/2013   8:49 PM         370424 wpcap.dll                                                             

    Directory: C:\WINDOWS\System32\Npcap

Mode                LastWriteTime         Length Name                                                                  
----                -------------         ------ ----                                                                  
-a----        5/10/2019   8:06 PM         116536 NpcapHelper.exe                                                       
-a----        5/10/2019   8:06 PM         190776 Packet.dll                                                            
-a----        5/10/2019   8:06 PM          74552 WlanHelper.exe                                                        
-a----        5/10/2019   8:06 PM         443704 wpcap.dll                                                             

    Directory: C:\WINDOWS\SysWOW64

Mode                LastWriteTime         Length Name                                                                  
----                -------------         ------ ----                                                                  
-a----        2/28/2013   8:49 PM          98040 Packet.dll                                                            
-a----        2/28/2013   8:49 PM         282360 wpcap.dll                                                             

    Directory: C:\WINDOWS\SysWOW64\Npcap

Mode                LastWriteTime         Length Name                                                                  
----                -------------         ------ ----                                                                  
-a----        5/10/2019   8:06 PM         102712 NpcapHelper.exe                                                       
-a----        5/10/2019   8:06 PM         165688 Packet.dll                                                            
-a----        5/10/2019   8:06 PM          64312 WlanHelper.exe                                                        
-a----        5/10/2019   8:06 PM         387384 wpcap.dll                                                             

*************************************************
WinPcap Info:
*************************************************
HKLM:\SOFTWARE\WOW6432Node\WinPcap:

(default)    : C:\Program Files (x86)\WinPcap

*************************************************
Registry Info:
*************************************************
HKLM:\SOFTWARE\WOW6432Node\Npcap:

AdminOnly         : 0
WinPcapCompatible : 0
(default)         : C:\Program Files\Npcap
LoopbackAdapter   : \Device\{94E813CE-02D6-418B-870F-681768C89B7E}

HKLM:\SYSTEM\CurrentControlSet\Services\npcap:

Type         : 1
Start        : 1
ErrorControl : 1
Tag          : 17
ImagePath    : \SystemRoot\system32\DRIVERS\npcap.sys
DisplayName  : @oem15.inf,%NPF_Desc_Standard%;Npcap Packet Driver (NPCAP)
Group        : NDIS
Description  : @oem15.inf,%NPF_Desc_Standard%;Npcap Packet Driver (NPCAP)

HKLM:\SYSTEM\CurrentControlSet\Services\npcap\Parameters:

NdisImPlatformBindingOptions : 0
LoopbackSupport              : 1
DltNull                      : 0
AdminOnly                    : 0
Dot11Support                 : 1
VlanSupport                  : 0
WinPcapCompatible            : 0
Dot11Adapters                : \Device\{fdca9475-665e-4866-82b0-0d6bac7e7d64}
LoopbackAdapter              : \Device\{94E813CE-02D6-418B-870F-681768C89B7E}
                               \npcap\Parameters
                               \npcap

HKLM:\SYSTEM\CurrentControlSet\Services\npcap_wifi:

Type         : 1
Start        : 4
ErrorControl : 1
Tag          : 18
ImagePath    : \SystemRoot\system32\DRIVERS\npcap.sys
DisplayName  : @oem15.inf,%NPF_Desc_WiFi%;Npcap Packet Driver (NPCAP) (Wi-Fi)
Group        : NDIS
Description  : @oem15.inf,%NPF_Desc_WiFi%;Npcap Packet Driver (NPCAP) (Wi-Fi)

HKLM:\SYSTEM\CurrentControlSet\Services\npcap_wifi\Parameters:

NdisImPlatformBindingOptions : 0
                               \npcap_wifi\Parameters
                               \npcap_wifi

HKLM:\SYSTEM\CurrentControlSet\Services\npf:

Type          : 1
Start         : 2
ErrorControl  : 1
ImagePath     : system32\drivers\npf.sys
DisplayName   : NetGroup Packet Filter Driver
TimestampMode : 0

HKLM:\SYSTEM\CurrentControlSet\Services\npf\Parameters:
Get-ItemProperty : Cannot find path 'HKLM:\SYSTEM\CurrentControlSet\Services\npf\Parameters' because it does not exist.
At C:\Program Files\Npcap\DiagReport.ps1:203 char:2
+ (Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\npf\Paramet ...
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (HKLM:\SYSTEM\Cu...\npf\Parameters:String) [Get-ItemProperty], ItemNotFo 
   undException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetItemPropertyCommand

HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi:
Get-ItemProperty : Cannot find path 'HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi' because it does not exist.
At C:\Program Files\Npcap\DiagReport.ps1:205 char:2
+ (Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi |  ...
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (HKLM:\SYSTEM\Cu...rvices\npf_wifi:String) [Get-ItemProperty], ItemNotFo 
   undException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetItemPropertyCommand

HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi\Parameters:
Get-ItemProperty : Cannot find path 'HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi\Parameters' because it does not 
exist.
At C:\Program Files\Npcap\DiagReport.ps1:207 char:2
+ (Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\npf_wifi\Pa ...
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (HKLM:\SYSTEM\Cu...wifi\Parameters:String) [Get-ItemProperty], ItemNotFo 
   undException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetItemPropertyCommand

*************************************************
Service Info:
*************************************************

Status      : Stopped
Name        : npcap
DisplayName : Npcap Packet Driver (NPCAP)

Status      : Running
Name        : npf
DisplayName : NetGroup Packet Filter Driver

*************************************************
Install Info:
*************************************************
Please refer to: C:\Program Files\Npcap\install.log

Here is the program I am compiling cleanly using gcc 7.4.0 on Cygwin 3.0.7.

#define HAVE_REMOTE 1

#include <pcap/pcap.h>

main()
{
    pcap_if_t *alldevs;
    pcap_if_t *d;
    int i=0;
    char errbuf[PCAP_ERRBUF_SIZE];

    /* Retrieve the device list from the local machine */
    if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL /* auth is not needed */, &alldevs, errbuf) == -1)
    {
        fprintf(stderr,"Error in pcap_findalldevs_ex: %s\n", errbuf);
        exit(1);
    }

    /* Print the list */
    for(d= alldevs; d != NULL; d= d->next)
    {
        printf("%d. %s", ++i, d->name);
        if (d->description)
            printf(" (%s)\n", d->description);
        else
            printf(" (No description available)\n");
    }

    if (i == 0)
    {
        printf("\nNo interfaces found! Make sure Npcap is installed.\n");
        return;
    }

    /* We don't need any more the device list. Free it */
    pcap_freealldevs(alldevs);
}

When I run this outside of teh debugger, it returns without displaying anything. When I run it in the debugger and set a break point on main, a few times it never gets to main (I have a feeling that it is happening during the library loading), and when it does brean on main, when I step over pcap_findalldevs_ex, I get the following output (includes the times when the debugger did not break on main):

$ gdb Executables/AXP_Test_Npcap.exe
GNU gdb (GDB) (Cygwin 8.1.1-1) 8.1.1
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-pc-cygwin".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from Executables/AXP_Test_Npcap.exe...done.
(gdb) b main
Breakpoint 1 at 0x100401095: file /cygdrive/g/git/DECaxp/Tests/AXP_Test_Npcap.c, line 9.
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 7020.0x2aa8]
[New Thread 7020.0x201c]
[New Thread 7020.0x1e10]
[New Thread 7020.0x29d8]
[Thread 7020.0x201c exited with code 3221225477]
[Thread 7020.0x1e10 exited with code 3221225477]
[Inferior 1 (process 7020) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 9580.0x1ad4]
[New Thread 9580.0x2864]
[New Thread 9580.0x2900]
[New Thread 9580.0x1a38]
[Thread 9580.0x2900 exited with code 3221225477]
[Thread 9580.0x1a38 exited with code 3221225477]
[Inferior 1 (process 9580) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 4996.0x289c]
[New Thread 4996.0x24d4]
[New Thread 4996.0x2180]
[New Thread 4996.0x1ae4]
[Thread 4996.0x24d4 exited with code 3221225477]
[Thread 4996.0x2180 exited with code 3221225477]
[Inferior 1 (process 4996) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 10540.0x2b80]
[New Thread 10540.0xc60]
[New Thread 10540.0x29a4]
[New Thread 10540.0x2b00]
[Thread 10540.0x2b00 exited with code 3221225477]
[Thread 10540.0x29a4 exited with code 3221225477]
[Inferior 1 (process 10540) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 7216.0x20e8]
[New Thread 7216.0x2ba4]
[New Thread 7216.0x328]
[New Thread 7216.0x24b8]
[Thread 7216.0x328 exited with code 3221225477]
[Thread 7216.0x24b8 exited with code 3221225477]
[Inferior 1 (process 7216) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 10812.0x16fc]
[New Thread 10812.0x2538]
[New Thread 10812.0x2220]
[New Thread 10812.0x1af4]
[Thread 10812.0x2538 exited with code 3221225477]
[Thread 10812.0x2220 exited with code 3221225477]
[Inferior 1 (process 10812) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 10804.0x1acc]
[New Thread 10804.0x259c]
[New Thread 10804.0x1138]
[New Thread 10804.0x13f4]
[Thread 10804.0x259c exited with code 3221225477]
[Thread 10804.0x1138 exited with code 3221225477]
[Inferior 1 (process 10804) exited with code 030000000005]
(gdb) r
Starting program: /cygdrive/g/git/DECaxp/build/Executables/AXP_Test_Npcap.exe
[New Thread 328.0x2854]
[New Thread 328.0x6cc]
[New Thread 328.0x46c]
[New Thread 328.0xe8]
[New Thread 328.0x2838]

Thread 1 "AXP_Test_Npcap" hit Breakpoint 1, main () at /cygdrive/g/git/DECaxp/Tests/AXP_Test_Npcap.c:9
9               int i=0;
(gdb) n
13              if (pcap_findalldevs_ex(PCAP_SRC_IF_STRING, NULL /* auth is not needed */, &alldevs, errbuf) == -1)
(gdb)
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
warning: Invalid parameter passed to C runtime function.
20              for(d= alldevs; d != NULL; d= d->next)
(gdb)
dmiller-nmap commented 5 years ago

Thanks for the very detailed report! You said the code worked with WinPcap. In order to avoid conflicting with existing WinPcap installs, Npcap was designed to install its DLLs to a different path, which requires delay-loading the DLLs and using SetDllDirectory() before using any Npcap functions. Here is the relevant section of the Npcap developer's guide, and you can also check out the code examples in the Npcap SDK, which put the appropriate code into a function called LoadNpcapDlls.

JonathanBelanger commented 5 years ago

I'm NOT using Visual Studio. How do I do this on Cygwin? I get the call stuff. What if I rename the all other DLL files to .dll.save? Also, the example code came right out of the code examples in the Npcap SDK. It is a direct download from the Npcap web page.

dmiller-nmap commented 5 years ago

I have not tested building Npcap-compatible tools with MinGW, but it appears you would do it this way:

  1. Create a delay-import library for wpcap.dll using the -y option to dlltool.
  2. Statically link your program to the delay-import library.
  3. In your program, call SetDllDirectory appropriately before calling any pcap-API functions.

I understand this code came from the Npcap Development Tutorial, which was adapted from the WinPcap documentation. I will have to revisit that tutorial and ensure that its code contains the appropriate delay-loading DLL code.

As a stopgap measure, you can install Npcap in WinPcap-API compatible mode, which should enable most WinPcap software to function, though Npcap-specific feature improvements may not be available.